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I Have a garden that has a drainage problem at the moment, the garden is landlocked on all sides, 2 sides where the garden level is slightly higher than the garden in question.

The soil is very heavy clay in the most, and some ash type soil.

The garden slopes away from the house, therefore its not possible to put convential drains in to combat this problem.

My thoughts are, do we put conventional drains in towards the house drains, and build up the rear of the garden so the fall is the opposite way. Possibly a vast amount of material to change the fall.

Or do we sink some sort of pump into the ground that can be turned on when the garden floods after heavey rain to clear the water? Has anyone done this type of thing? After several days of rain and heavy showers, the garden is around 50% covered in water, some places around 6-8 inches deep.

In the photo I have added, you can see the garden slopes towards the shed and the tree to the left, on the concrete edging the customer has placed dead centre of the picture, you can just make out a water line, thats where the water comes upto when it rains hard. The water does eventually seep away after a few days. I've had a dig at the bottom of the garden just in front of the small conifers, it is sold clay underneath, I dug to 2 feet deep, 

so even if we put a soakaway drian in say 2 feet deep, this wouldnt help.



Or has anybody got any other ideas of how to get round this problem?

Thanks in advance for any help you may be able to give me.